Laboratory exercises in physics for secondary schools (1902)
Twiss, George Ransom, b. 1863 · New York, London, The Macmillan company · leaf 220
the waveswhich are thus separated ? Why are their directionschanged, some more than others ? (#) Place a second prism between the first prismand the eyes, the second being inverted as shown inFig. 48. What is the effect ? Are the waves recom-bined ? What is whitelight ? (Ji) Now place the… … 192 LABORATORY EXERCISES IN PHYSICS given by reflection from the strip of paper. This isthe spectrum from white-hot carbon. A stick witha spark on the end of it, or the filament of an incan-descent electric lamp without the slit, will give thesame result. (T) Replace the lamp by the Bunsen burner,…
Physics
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